I don't know a ton of people who do them, but my turn-around time is 24 hours from the time of payment, cost is based on how much detail you want in it, I personally find blank cards at the hobby shop, if you are interested in doing sketch cards I can give you some advice as far as pens/pencils and materials you would need just PM me...... if your interested in me doing one for you I did this one earlier this morning so you can get an idea of what one I did looks like